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add moveBefore/moveAfter helper methods 

llvm-svn: 31145
This commit is contained in:
Chris Lattner 2006-10-24 00:02:26 +00:00
parent fdf6144168
commit 94866bef35
1 changed files with 12 additions and 0 deletions
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12
llvm/lib/CodeGen/MachineBasicBlock.cpp
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@ -120,6 +120,18 @@ void MachineBasicBlock::print(std::ostream &OS) const {
}
}
void MachineBasicBlock::moveBefore(MachineBasicBlock *NewAfter) {
MachineFunction::BasicBlockListType &BBList =getParent()->getBasicBlockList();
getParent()->getBasicBlockList().splice(NewAfter, BBList, this);
}
void MachineBasicBlock::moveAfter(MachineBasicBlock *NewBefore) {
MachineFunction::BasicBlockListType &BBList =getParent()->getBasicBlockList();
MachineFunction::iterator BBI = NewBefore;
getParent()->getBasicBlockList().splice(++BBI, BBList, this);
}
void MachineBasicBlock::addSuccessor(MachineBasicBlock *succ) {
Successors.push_back(succ);
succ->addPredecessor(this);